/* roulang page: index */
:root{
  --brand:#1B58C7;
  --brand-deep:#0F3A87;
  --brand-soft:rgba(27,88,199,.10);
  --accent:#17C3B2;
  --orange:#FF6A3D;
  --bg:#F4F7FC;
  --card:#FFFFFF;
  --line:#E3EAF5;
  --ink:#101A2E;
  --ink-2:#5A6B87;
  --ink-3:#8A99B0;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-block:24px;
  --sh-card:0 6px 20px rgba(16,26,46,.06);
  --sh-hover:0 14px 32px rgba(27,88,199,.14);
  --sh-nav:0 6px 24px rgba(16,26,46,.08);
  --t:220ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Inter,system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.8;color:var(--ink);background:var(--bg);
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none;padding:0}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px}
.section{padding:92px 0}
.section--soft{background:#fff}
.section--tight{padding:72px 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px}
.sec-head h2{font-size:32px;font-weight:700;letter-spacing:-.4px;line-height:1.3}
.sec-head p{margin-top:8px;font-size:15px;color:var(--ink-2);max-width:660px;line-height:1.7}
.sec-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand);white-space:nowrap}
.sec-link svg{transition:transform var(--t)}
.sec-link:hover{color:var(--orange)}
.sec-link:hover svg{transform:translateX(3px)}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:90;background:transparent;transition:background 300ms ease,box-shadow 300ms ease}
.site-header.is-scrolled{background:rgba(255,255,255,.97);box-shadow:var(--sh-nav)}
.header-inner{height:72px;display:flex;align-items:center;gap:36px}
.logo{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:700;letter-spacing:-.2px;flex:0 0 auto}
.logo__mark{position:relative;width:32px;height:32px;border-radius:9px;background:linear-gradient(135deg,var(--brand),var(--brand-deep));box-shadow:0 4px 12px rgba(27,88,199,.32);flex:0 0 auto}
.logo__mark::before{content:"";position:absolute;left:12px;top:10px;width:0;height:0;border-left:9px solid #fff;border-top:6px solid transparent;border-bottom:6px solid transparent}
.logo__mark::after{content:"";position:absolute;right:5px;bottom:5px;width:6px;height:6px;border-radius:2px;background:var(--orange)}
.logo__text{color:#fff;transition:color 300ms ease}
.site-header.is-scrolled .logo__text{color:var(--brand-deep)}
.nav{display:flex;align-items:center;gap:32px}
.nav a{position:relative;display:inline-block;padding:6px 0;font-size:15px;color:rgba(255,255,255,.86);transition:color var(--t)}
.nav a::after{content:"";position:absolute;left:0;right:0;bottom:-3px;height:3px;border-radius:2px;background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform var(--t)}
.nav a:hover{color:#fff}
.nav a:hover::after,.nav a.active::after{transform:scaleX(1)}
.site-header.is-scrolled .nav a{color:var(--ink-2)}
.site-header.is-scrolled .nav a:hover,.site-header.is-scrolled .nav a.active{color:var(--brand-deep)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.icon-btn{width:44px;height:44px;border-radius:10px;display:grid;place-items:center;border:1px solid rgba(255,255,255,.45);color:#fff;transition:background var(--t),border-color var(--t),color var(--t)}
.icon-btn:hover{background:rgba(255,255,255,.16)}
.site-header.is-scrolled .icon-btn{border-color:var(--line);color:var(--brand-deep);background:#fff}
.site-header.is-scrolled .icon-btn:hover{background:#F7FAFF;border-color:rgba(27,88,199,.3)}
.search-panel{position:absolute;left:0;right:0;top:72px;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 12px 26px rgba(16,26,46,.08);padding:16px 0;display:none}
.search-panel.is-open{display:block}
.search-panel form{display:flex;gap:12px}
.search-panel input{flex:1;height:48px;border-radius:var(--r-btn);border:1px solid var(--line);background:#fff;padding:0 16px;font-size:15px;transition:border-color var(--t),box-shadow var(--t)}
.search-panel input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(27,88,199,.12)}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;white-space:nowrap;transition:background var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t)}
.btn--primary{background:var(--brand);color:#fff}
.btn--primary:hover{background:#164bb0;transform:translateY(-1px);box-shadow:0 10px 22px rgba(27,88,199,.28)}
.btn--orange{background:var(--orange);color:#fff}
.btn--orange:hover{background:#ef5a2c;transform:translateY(-1px);box-shadow:0 10px 22px rgba(255,106,61,.3)}
.btn--ghost{border:1.5px solid var(--brand);color:var(--brand);background:transparent}
.btn--ghost:hover{background:rgba(27,88,199,.08)}
.btn--light{border:1.5px solid rgba(255,255,255,.72);color:#fff;background:transparent}
.btn--light:hover{background:rgba(255,255,255,.16)}
.btn--sm{min-height:40px;padding:0 16px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}
.btn--block{width:100%}

/* ---------- 徽章 ---------- */
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;font-size:12px;font-weight:600;line-height:1;white-space:nowrap}
.badge--brand{background:var(--brand-soft);color:var(--brand)}
.badge--orange{background:var(--orange);color:#fff}
.badge--ghost{background:rgba(255,255,255,.18);color:#fff;border:1px solid rgba(255,255,255,.4)}
.badge--soft{background:var(--bg);color:var(--ink-2)}

/* ---------- Hero ---------- */
.hero{
  position:relative;margin-top:-72px;padding:148px 0 96px;min-height:664px;display:flex;align-items:center;
  background-image:linear-gradient(90deg,rgba(15,58,135,.88) 0%,rgba(27,88,199,.64) 46%,rgba(27,88,199,.22) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.hero-grid{display:grid;grid-template-columns:minmax(0,600px) 1fr;gap:56px;align-items:center}
.hero h1{font-size:48px;line-height:1.2;font-weight:700;letter-spacing:-.5px;color:#fff}
.hero__sub{margin-top:20px;font-size:17px;line-height:1.78;color:rgba(255,255,255,.84);max-width:520px}
.hero__cta{margin-top:32px;display:flex;gap:14px;flex-wrap:wrap}
.hero__stats{margin-top:48px;display:flex;gap:48px;flex-wrap:wrap}
.stat__num{font-size:26px;font-weight:700;color:#fff;letter-spacing:-.3px}
.stat__label{margin-top:2px;font-size:12px;color:rgba(255,255,255,.72)}
.hero-card{width:284px;margin-left:auto;background:#fff;border-radius:20px;padding:14px;box-shadow:0 24px 60px rgba(9,24,54,.34)}
.hero-card img{width:100%;aspect-ratio:3/4;object-fit:cover;border-radius:12px}
.hero-card h3{margin-top:14px;font-size:17px;font-weight:700;line-height:1.5}
.hero-card p{margin-top:6px;font-size:13px;color:var(--ink-2);line-height:1.6}

/* ---------- 横滑片库 ---------- */
.rail-wrap{position:relative}
.rail{display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;padding:6px 4px 18px;scrollbar-width:none;-ms-overflow-style:none}
.rail::-webkit-scrollbar{display:none}
.rail>*{flex:0 0 auto;scroll-snap-align:start}
.rail-btn{position:absolute;top:42%;width:44px;height:44px;border-radius:50%;background:#fff;border:1px solid var(--line);box-shadow:var(--sh-card);display:grid;place-items:center;color:var(--brand);z-index:4;transition:background var(--t),color var(--t),transform var(--t)}
.rail-btn:hover{background:var(--brand);color:#fff;transform:scale(1.04)}
.rail-btn--prev{left:-22px}
.rail-btn--next{right:-22px}

/* ---------- 竖版封面卡 ---------- */
.v-card{width:260px;background:#fff;border-radius:var(--r-card);box-shadow:var(--sh-card);overflow:hidden;display:flex;flex-direction:column;transition:transform var(--t),box-shadow var(--t)}
.v-card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover)}
.v-card__cover{position:relative;aspect-ratio:16/21;overflow:hidden;background:var(--bg)}
.v-card__cover img{width:100%;height:100%;object-fit:cover;transition:transform 300ms ease-out}
.v-card:hover .v-card__cover img{transform:scale(1.04)}
.v-card__cover .badge{position:absolute;left:10px;top:10px;z-index:2}
.v-card__num{position:absolute;right:10px;bottom:10px;z-index:2;background:rgba(16,26,46,.78);color:#fff;font-size:12px;padding:3px 9px;border-radius:999px}
.v-card__body{padding:16px 18px 20px;display:flex;flex-direction:column;gap:8px;flex:1}
.v-card__body h3{font-size:16px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.v-card__body h3 a:hover{color:var(--brand)}
.v-card__meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:13px;color:var(--ink-3)}

/* ---------- 热播推荐 ---------- */
.hot-grid{display:grid;grid-template-columns:7fr 5fr;gap:28px;align-items:start}
.mcard{position:relative;display:block;border-radius:20px;overflow:hidden;box-shadow:var(--sh-card);transition:box-shadow var(--t)}
.mcard:hover{box-shadow:var(--sh-hover)}
.mcard img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform 300ms ease-out}
.mcard:hover img{transform:scale(1.04)}
.mcard__mask{position:absolute;left:0;right:0;bottom:0;padding:28px;background:linear-gradient(to top,rgba(9,24,54,.92) 0%,rgba(9,24,54,.42) 58%,transparent 100%)}
.mcard__mask h3{font-size:22px;font-weight:700;color:#fff;line-height:1.4}
.mcard__mask p{margin-top:8px;font-size:14px;color:rgba(255,255,255,.82)}
.mcard__play{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%) scale(.86);width:64px;height:64px;border-radius:50%;background:rgba(255,255,255,.92);display:grid;place-items:center;color:var(--brand-deep);opacity:0;transition:opacity var(--t),transform var(--t)}
.mcard:hover .mcard__play{opacity:1;transform:translate(-50%,-50%) scale(1)}
.rank{background:#fff;border-radius:var(--r-card);box-shadow:var(--sh-card);padding:8px 6px}
.rank li+li{border-top:1px solid var(--line)}
.rank a{display:flex;align-items:center;gap:16px;height:72px;padding:0 14px;border-radius:10px;transition:background var(--t),transform var(--t)}
.rank a:hover{background:#F7FAFF;transform:translateX(4px)}
.rank__no{min-width:42px;font-size:24px;font-weight:700;color:transparent;-webkit-text-stroke:1.3px var(--brand);line-height:1}
.rank__txt{flex:1;min-width:0}
.rank__txt h3{font-size:15px;font-weight:600;line-height:1.4;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rank__txt span{display:block;margin-top:2px;font-size:12px;color:var(--ink-3)}
.heat{width:60px;height:6px;border-radius:999px;background:var(--line);overflow:hidden;flex:0 0 auto}
.heat i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--brand),var(--accent))}

/* ---------- 马赛克分区 ---------- */
.mosaic{display:grid;grid-template-columns:58fr 42fr;gap:24px;align-items:stretch}
.mosaic__main .mcard img{aspect-ratio:4/4.4}
.mosaic__side{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.mosaic__side .v-card{width:100%}
.mosaic__side .v-card__cover{aspect-ratio:3/4}
.mosaic__side .v-card__body{padding:14px 15px 16px}
.mosaic__side .v-card__body h3{font-size:14px}

/* ---------- 行列表分区 ---------- */
.rowlist{display:grid;grid-template-columns:1fr 1fr;gap:0 44px}
.row-card{position:relative;display:flex;align-items:center;gap:16px;height:96px;padding:0 12px;border-bottom:1px solid var(--line);transition:background var(--t)}
.row-card::before{content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;border-radius:2px;background:var(--brand);transform:scaleY(0);transition:transform var(--t)}
.row-card:hover{background:#F7FAFF}
.row-card:hover::before{transform:scaleY(1)}
.row-card img{width:120px;height:80px;object-fit:cover;border-radius:12px;flex:0 0 auto}
.row-card__txt{min-width:0;flex:1}
.row-card__txt h3{font-size:16px;font-weight:600;line-height:1.4;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.row-card__txt p{margin-top:4px;font-size:13px;color:var(--ink-2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.row-card__meta{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--ink-3);flex:0 0 auto}
.rowlist__more{grid-column:1/-1;display:flex;justify-content:center;margin-top:36px}

/* ---------- 最新信息（CMS 区） ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.news-card{background:#fff;border-radius:var(--r-card);box-shadow:var(--sh-card);overflow:hidden;display:flex;flex-direction:column;transition:transform var(--t),box-shadow var(--t)}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover)}
.news-card__cover{display:block;overflow:hidden;background:var(--bg)}
.news-card__cover img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform 300ms ease-out}
.news-card:hover .news-card__cover img{transform:scale(1.04)}
.news-card__body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-card__body h3{font-size:17px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card__body h3 a:hover{color:var(--brand)}
.news-card__body p{font-size:15px;color:var(--ink-2);line-height:1.7;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-card__meta{margin-top:auto;padding-top:14px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-3)}
.news-card__meta .more{color:var(--brand);font-weight:600}
.empty-state{min-height:240px;border-radius:var(--r-block);background:#F9FBFE;border:1px solid var(--line);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;padding:32px;grid-column:1/-1;text-align:center}
.empty-state svg{color:var(--ink-3)}
.empty-state p{font-size:15px;color:var(--ink-2)}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:start}
.faq-item{background:#fff;border-radius:var(--r-card);box-shadow:var(--sh-card);overflow:hidden;border:1px solid transparent;transition:border-color var(--t)}
.faq-item.is-open{border-color:rgba(27,88,199,.3)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 22px;text-align:left;font-size:17px;font-weight:600;line-height:1.5;color:var(--ink);border-left:3px solid var(--brand)}
.faq-q:hover{color:var(--brand-deep)}
.faq-q svg{flex:0 0 auto;color:var(--brand);transition:transform var(--t)}
.faq-item.is-open .faq-q svg{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 300ms ease-out}
.faq-a p{padding:0 22px 20px 25px;font-size:15px;line-height:1.8;color:var(--ink-2)}

/* ---------- CTA ---------- */
.cta{position:relative;border-radius:var(--r-block);overflow:hidden;padding:64px 56px;color:#fff;
  background-image:linear-gradient(90deg,rgba(15,58,135,.95) 0%,rgba(27,88,199,.84) 100%),url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.1);
}
.cta::after{content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:44px 44px;
}
.cta__inner{position:relative;z-index:2;max-width:680px}
.cta h2{font-size:30px;font-weight:700;line-height:1.35}
.cta p{margin-top:12px;font-size:15px;color:rgba(255,255,255,.84);line-height:1.75}
.subscribe{margin-top:28px;display:flex;gap:12px}
.subscribe input{flex:1;height:48px;border-radius:var(--r-btn);border:1px solid rgba(255,255,255,.35);background:rgba(255,255,255,.12);color:#fff;padding:0 16px;font-size:15px;transition:border-color var(--t),box-shadow var(--t)}
.subscribe input::placeholder{color:rgba(255,255,255,.62)}
.subscribe input:focus{outline:none;border-color:#fff;box-shadow:0 0 0 4px rgba(255,255,255,.16)}
.subscribe__tip{margin-top:12px;font-size:13px;color:rgba(255,255,255,.78);min-height:20px}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:92px;background:var(--brand-deep);color:#fff;padding-top:64px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:700}
.footer-brand .logo__mark{box-shadow:none}
.footer-grid p{margin-top:16px;font-size:14px;color:rgba(255,255,255,.72);line-height:1.8;max-width:280px}
.footer-grid h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-grid li+li{margin-top:10px}
.footer-grid li a{font-size:14px;color:rgba(255,255,255,.72);transition:color var(--t)}
.footer-grid li a:hover{color:#fff}
.footer-note{font-size:14px;color:rgba(255,255,255,.72);line-height:1.8}
.footer-bottom{border-top:1px solid rgba(255,255,255,.16);padding:20px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.62)}

/* ---------- 移动端底部 Tab ---------- */
.mobile-tabs{display:none;position:fixed;left:0;right:0;bottom:0;z-index:95;background:#fff;border-top:1px solid var(--line);box-shadow:0 -6px 20px rgba(16,26,46,.07);padding-bottom:env(safe-area-inset-bottom)}
.mobile-tabs a{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;height:60px;font-size:12px;color:var(--ink-3);transition:color var(--t)}
.mobile-tabs a::before{content:"";position:absolute;top:0;left:50%;transform:translateX(-50%) scaleX(0);width:28px;height:2px;border-radius:2px;background:var(--brand);transition:transform var(--t)}
.mobile-tabs a.active{color:var(--brand)}
.mobile-tabs a.active::before{transform:translateX(-50%) scaleX(1)}
.mobile-tabs svg{width:22px;height:22px}

/* ---------- 响应式 ---------- */
@media (max-width:1439px){.container{max-width:1160px}}
@media (max-width:1199px){
  .container{max-width:100%;padding:0 28px}
  .hero h1{font-size:42px}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .mosaic{grid-template-columns:1fr}
  .mosaic__main .mcard img{aspect-ratio:16/9}
}
@media (max-width:991px){
  .section{padding:64px 0}
  .section--tight{padding:52px 0}
  .container{padding:0 24px}
  .nav{gap:22px}
  .nav a{font-size:14px}
  .hero{padding:132px 0 72px;min-height:560px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero h1{font-size:36px}
  .hero-card{display:none}
  .sec-head h2{font-size:26px}
  .hot-grid{grid-template-columns:1fr}
  .rowlist{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .rail-btn{display:none}
  .mosaic__side{grid-template-columns:1fr 1fr}
}
@media (max-width:767px){
  body{padding-bottom:60px}
  .container{padding:0 16px}
  .section{padding:48px 0}
  .section--tight{padding:44px 0}
  .nav,.header-actions{display:none}
  .header-inner{height:60px;gap:0}
  .hero{margin-top:-60px;padding:104px 0 56px;min-height:500px}
  .hero h1{font-size:29px;letter-spacing:-.2px}
  .hero__sub{font-size:15px;margin-top:14px}
  .hero__cta{margin-top:24px;gap:10px}
  .hero__cta .btn{flex:1 1 auto;min-width:140px}
  .hero__stats{margin-top:32px;gap:28px}
  .stat__num{font-size:21px}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:22px}
  .sec-head h2{font-size:23px}
  .news-grid{grid-template-columns:1fr;gap:20px}
  .faq-grid{grid-template-columns:1fr}
  .v-card{width:200px}
  .mosaic__side{grid-template-columns:1fr}
  .row-card{height:auto;padding:14px 10px;align-items:flex-start}
  .row-card img{width:96px;height:64px}
  .row-card__txt h3,.row-card__txt p{white-space:normal}
  .row-card__meta{display:none}
  .cta{padding:40px 24px;border-radius:18px}
  .cta h2{font-size:23px}
  .subscribe{flex-direction:column}
  .subscribe .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px}
  .site-footer{margin-top:56px;padding-top:48px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .mobile-tabs{display:grid;grid-template-columns:repeat(3,1fr)}
  .mcard__mask{padding:18px}
  .mcard__mask h3{font-size:18px}
  .rank a{height:64px;gap:12px;padding:0 8px}
  .rank__no{min-width:34px;font-size:20px}
  .heat{width:44px}
}
@media (max-width:479px){
  .hero h1{font-size:26px}
  .sec-head h2{font-size:21px}
  .btn{min-height:44px;padding:0 18px;font-size:14px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: article */
:root{
  --brand:#1B58C7;
  --brand-dark:#0F3A87;
  --cyan:#17C3B2;
  --orange:#FF6A3D;
  --bg:#F4F7FC;
  --surface:#FFFFFF;
  --line:#E3EAF5;
  --ink:#101A2E;
  --ink-2:#5A6B87;
  --ink-3:#8A99B0;
  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:10px;
  --radius-block:24px;
  --shadow-sm:0 6px 20px rgba(16,26,46,.06);
  --shadow-hover:0 14px 32px rgba(27,88,199,.14);
  --dur:200ms;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none}
a:hover{color:var(--orange)}
h1,h2,h3,h4{margin:0;line-height:1.25;letter-spacing:-.4px}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input{font:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.site-header.is-scrolled{box-shadow:0 8px 24px rgba(16,26,46,.07)}
.header-inner{display:flex;align-items:center;gap:24px;height:72px}
.logo{display:flex;align-items:center;gap:10px;color:var(--ink);font-weight:700}
.logo:hover{color:var(--brand)}
.logo__mark{position:relative;width:30px;height:30px;border-radius:9px;background:linear-gradient(135deg,var(--brand),var(--brand-dark));flex:0 0 auto}
.logo__mark::after{content:"";position:absolute;right:-3px;bottom:-3px;width:11px;height:11px;border-radius:3px;background:var(--orange);box-shadow:0 0 0 2px #fff}
.logo__mark::before{content:"";position:absolute;inset:0;margin:auto;width:0;height:0;border-style:solid;border-width:6px 0 6px 10px;border-color:transparent transparent transparent #fff}
.logo__text{font-size:17px;letter-spacing:-.3px;white-space:nowrap}
.nav{display:flex;align-items:center;gap:32px;margin-left:16px}
.nav a{position:relative;font-size:15px;color:var(--ink-2);padding:6px 0;transition:color var(--dur) ease-out}
.nav a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:3px;border-radius:2px;background:var(--brand);opacity:0;transform:translateY(3px);transition:opacity var(--dur),transform var(--dur)}
.nav a:hover{color:var(--brand)}
.nav a:hover::after,.nav a.active::after{opacity:1;transform:none}
.nav a.active{color:var(--brand-dark);font-weight:600}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.icon-btn{width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:var(--radius-btn);color:var(--ink-2);background:#fff;transition:color var(--dur),border-color var(--dur),background var(--dur)}
.icon-btn:hover{color:var(--brand);border-color:rgba(27,88,199,.4);background:#F7FAFF}
.search-panel{display:none;border-top:1px solid var(--line);background:#fff}
.search-panel.is-open{display:block}
.search-panel form{display:flex;gap:12px;padding:14px 0}
.search-panel input{flex:1;height:48px;padding:0 16px;border:1px solid var(--line);border-radius:var(--radius-btn);background:#fff;transition:border-color var(--dur),box-shadow var(--dur)}
.search-panel input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(27,88,199,.12)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:.2px;cursor:pointer;
  transition:background var(--dur) ease-out,color var(--dur),border-color var(--dur),transform var(--dur),box-shadow var(--dur);
}
.btn--primary{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(27,88,199,.22)}
.btn--primary:hover{background:#1750B5;color:#fff;transform:translateY(-1px)}
.btn--ghost{border:1.5px solid var(--brand);color:var(--brand);background:transparent}
.btn--ghost:hover{background:rgba(27,88,199,.08);color:var(--brand)}
.btn--light{background:#fff;color:var(--brand-dark)}
.btn--light:hover{background:#EDF3FF;color:var(--brand-dark)}
.btn--sm{min-height:40px;padding:0 16px;font-size:14px}
.btn--block{width:100%}
.btn .arrow{transition:transform var(--dur)}
.btn:hover .arrow{transform:translateX(3px)}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand)}
.text-link:hover .arrow{transform:translateX(3px)}

/* ---------- badges ---------- */
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;font-size:12px;font-weight:600;line-height:1;white-space:nowrap}
.badge--cat{background:rgba(27,88,199,.1);color:var(--brand)}
.badge--hot{background:var(--orange);color:#fff}
.badge--soft{background:var(--bg);color:var(--ink-2);font-weight:500}

/* ---------- main / page head ---------- */
main{display:block;padding-bottom:96px}
.page-head{background:
  linear-gradient(115deg,rgba(15,58,135,.94) 0%,rgba(27,88,199,.86) 55%,rgba(23,195,178,.55) 100%),
  url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  color:#fff;padding:44px 0 52px;position:relative;overflow:hidden}
.page-head::after{content:"";position:absolute;right:-80px;top:-60px;width:320px;height:320px;border-radius:50%;background:rgba(255,255,255,.07)}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.8);margin-bottom:20px}
.breadcrumb a{color:rgba(255,255,255,.85)}
.breadcrumb a:hover{color:#fff}
.breadcrumb .sep{color:rgba(255,255,255,.5)}
.breadcrumb .now{color:#fff;max-width:60%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.page-head h1{font-size:38px;font-weight:700;line-height:1.3;max-width:880px;letter-spacing:-.6px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:20px;font-size:13px;color:rgba(255,255,255,.85)}
.article-meta .divider{width:1px;height:14px;background:rgba(255,255,255,.35)}

/* ---------- layout ---------- */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:56px;align-items:start;margin-top:48px}
.article-main{min-width:0}
.section-gap{margin-top:56px}

/* ---------- article body ---------- */
.article-body{
  background:var(--surface);border-radius:var(--radius-block);box-shadow:var(--shadow-sm);
  padding:40px 44px;max-width:800px;
}
.article-body>*+*{margin-top:1.15em}
.article-body h2{font-size:28px;font-weight:700;margin-top:40px;margin-bottom:16px;padding-left:14px;position:relative}
.article-body h2::before{content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:4px;border-radius:2px;background:var(--brand)}
.article-body h3{font-size:20px;font-weight:600;margin-top:28px;margin-bottom:10px}
.article-body p{font-size:17px;line-height:1.85;color:#233047}
.article-body img{border-radius:var(--radius-img);width:100%;height:auto;margin-top:24px}
.article-body figure{margin:24px 0 0}
.article-body figcaption{text-align:center;font-size:13px;color:var(--ink-3);margin-top:10px}
.article-body ul{list-style:none;padding-left:0}
.article-body ul li{position:relative;padding-left:20px;margin-top:8px;font-size:17px;line-height:1.8;color:#233047}
.article-body ul li::before{content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;border-radius:1px;background:var(--brand)}
.article-body ol{list-style:none;counter-reset:item;padding-left:0}
.article-body ol li{counter-increment:item;position:relative;padding-left:30px;margin-top:8px;font-size:17px;line-height:1.8;color:#233047}
.article-body ol li::before{content:counter(item,decimal-leading-zero);position:absolute;left:0;top:0;font-size:14px;font-weight:700;color:var(--brand)}
.article-body blockquote{margin:24px 0 0;padding:20px;background:var(--bg);border-left:4px solid var(--brand);border-radius:0 var(--radius-img) var(--radius-img) 0;color:#2A3A56}
.article-body blockquote p{font-size:16px;color:#2A3A56}
.article-body table{width:100%;border-collapse:collapse;border:1px solid var(--line);border-radius:var(--radius-img);overflow:hidden;display:block;overflow-x:auto}
.article-body th,.article-body td{border:1px solid var(--line);padding:12px 14px;font-size:15px;text-align:left;white-space:nowrap}
.article-body th{background:var(--bg);font-weight:600;color:var(--brand-dark)}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--orange)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0}
.article-foot{margin-top:32px;padding-top:20px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.article-foot .label{font-size:13px;color:var(--ink-3);margin-right:4px}
.tag{display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;background:var(--bg);color:var(--ink-2);font-size:13px;transition:background var(--dur),color var(--dur)}
.tag:hover{background:rgba(27,88,199,.1);color:var(--brand)}

/* ---------- empty state ---------- */
.empty-state{
  background:var(--surface);border-radius:var(--radius-block);box-shadow:var(--shadow-sm);
  min-height:280px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;padding:48px 24px;text-align:center;color:var(--ink-2);
}
.empty-state svg{color:var(--ink-3)}
.empty-state p{font-size:15px}

/* ---------- sidebar ---------- */
.article-side{display:flex;flex-direction:column;gap:24px;position:sticky;top:96px}
.side-card{background:var(--surface);border-radius:var(--radius-card);box-shadow:var(--shadow-sm);padding:22px}
.side-card h2{font-size:17px;font-weight:700;margin-bottom:16px;padding-left:12px;position:relative}
.side-card h2::before{content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:3px;border-radius:2px;background:var(--brand)}
.side-list li+li{margin-top:14px;padding-top:14px;border-top:1px solid var(--line)}
.side-list a{display:flex;gap:12px;align-items:flex-start;color:var(--ink)}
.side-list a:hover{color:var(--brand)}
.side-list .thumb{width:72px;height:52px;flex:0 0 auto;border-radius:8px;overflow:hidden;background:rgba(27,88,199,.08)}
.side-list .thumb img{width:100%;height:100%;object-fit:cover}
.side-list .t{font-size:14px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.side-list .s{font-size:12px;color:var(--ink-3);margin-top:4px}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px}
.side-note{font-size:13px;color:var(--ink-2);line-height:1.7}

/* ---------- post nav & related ---------- */
.post-nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:56px}
.post-nav a{display:flex;flex-direction:column;gap:6px;background:var(--surface);border-radius:var(--radius-card);box-shadow:var(--shadow-sm);padding:22px;transition:box-shadow var(--dur),transform var(--dur),border-color var(--dur);border:1px solid transparent}
.post-nav a:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);border-color:rgba(27,88,199,.3)}
.post-nav .k{font-size:13px;color:var(--ink-3)}
.post-nav .v{font-size:16px;font-weight:700;color:var(--ink)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-top:64px}
.section-head h2{font-size:30px;font-weight:700}
.section-head p{font-size:15px;color:var(--ink-2);margin-top:8px}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:28px}
.card{display:flex;flex-direction:column;background:var(--surface);border-radius:var(--radius-card);box-shadow:var(--shadow-sm);overflow:hidden;color:var(--ink);transition:box-shadow var(--dur),transform var(--dur),border-color var(--dur);border:1px solid transparent}
.card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);border-color:rgba(27,88,199,.3)}
.card__media{position:relative;aspect-ratio:16/9;overflow:hidden;background:rgba(27,88,199,.08)}
.card__media img{width:100%;height:100%;object-fit:cover;transition:transform 240ms ease-out}
.card:hover .card__media img{transform:scale(1.04)}
.card__media .badge{position:absolute;left:12px;top:12px}
.card__body{padding:18px 18px 20px}
.card__body h3{font-size:17px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card__body p{font-size:14px;color:var(--ink-2);margin-top:10px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.card__meta{display:flex;align-items:center;justify-content:space-between;margin-top:14px;font-size:13px;color:var(--ink-3)}
.img-fallback{background:rgba(27,88,199,.08);display:flex;align-items:center;justify-content:center;color:var(--brand)}

/* ---------- CTA ---------- */
.cta-band{
  margin-top:88px;border-radius:var(--radius-block);overflow:hidden;position:relative;
  background:linear-gradient(120deg,rgba(15,58,135,.95),rgba(27,88,199,.9) 58%,rgba(23,195,178,.6)),
             url("/assets/images/backpic/back-3.png") center/cover no-repeat;
  color:#fff;padding:56px 48px;box-shadow:inset 0 0 0 1px rgba(255,255,255,.12);
}
.cta-band::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);background-size:36px 36px;pointer-events:none}
.cta-band .inner{position:relative;z-index:1;max-width:660px}
.cta-band h2{font-size:30px;font-weight:700}
.cta-band p{margin-top:14px;font-size:15px;color:rgba(255,255,255,.88);line-height:1.8}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-dark);color:rgba(255,255,255,.8);padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:17px;margin-bottom:14px}
.site-footer p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.72)}
.site-footer h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.site-footer ul li+li{margin-top:10px}
.site-footer ul a{font-size:14px;color:rgba(255,255,255,.75)}
.site-footer ul a:hover{color:#fff}
.footer-note{font-size:14px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.16);padding:20px 0 28px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.62)}

/* ---------- mobile tab bar ---------- */
.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;display:none;
  background:#fff;border-top:1px solid var(--line);box-shadow:0 -6px 18px rgba(16,26,46,.08);
  padding-bottom:env(safe-area-inset-bottom);
}
.tabbar ul{display:flex}
.tabbar li{flex:1}
.tabbar a{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;height:60px;font-size:12px;color:var(--ink-3);position:relative}
.tabbar a svg{stroke:currentColor}
.tabbar a.active{color:var(--brand)}
.tabbar a.active::before{content:"";position:absolute;top:0;width:26px;height:2px;border-radius:0 0 2px 2px;background:var(--brand)}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .container{padding:0 24px}
  .article-layout{grid-template-columns:minmax(0,1fr) 280px;gap:36px}
  .page-head h1{font-size:32px}
}
@media (max-width:991px){
  .nav{display:none}
  .article-layout{grid-template-columns:minmax(0,1fr)}
  .article-side{position:static}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .page-head h1{font-size:28px}
}
@media (max-width:767px){
  body{font-size:15px}
  .container{padding:0 16px}
  .header-actions .btn{display:none}
  .article-body{padding:24px 18px;border-radius:var(--radius-card)}
  .article-body p,.article-body ul li,.article-body ol li{font-size:16px}
  .article-body h2{font-size:22px}
  .article-body h3{font-size:18px}
  .page-head{padding:32px 0 40px}
  .page-head h1{font-size:24px}
  .article-meta{gap:10px;font-size:12px}
  .post-nav{grid-template-columns:minmax(0,1fr)}
  .related-grid{grid-template-columns:minmax(0,1fr)}
  .section-head{flex-direction:column;align-items:flex-start}
  .section-head h2{font-size:22px}
  .cta-band{padding:36px 22px;margin-top:56px}
  .cta-band h2{font-size:22px}
  .cta-actions .btn{width:100%}
  .tabbar{display:block}
  main{padding-bottom:60px}
  .site-footer{padding-bottom:60px}
}
@media (max-width:479px){
  .logo__text{font-size:15px}
  .footer-grid{grid-template-columns:1fr}
  .search-panel form{flex-direction:column}
  .search-panel form .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
}

/* roulang page: category1 */
:root{
  --brand:#1B58C7;
  --brand-dark:#0F3A87;
  --brand-soft:rgba(27,88,199,.08);
  --brand-line:rgba(27,88,199,.3);
  --cyan:#17C3B2;
  --orange:#FF6A3D;
  --bg:#F4F7FC;
  --surface:#FFFFFF;
  --line:#E3EAF5;
  --ink:#101A2E;
  --muted:#5A6B87;
  --weak:#8A99B0;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-badge:999px;
  --r-block:24px;
  --sh-card:0 6px 20px rgba(16,26,46,.06);
  --sh-hover:0 14px 32px rgba(27,88,199,.14);
  --sh-header:0 6px 24px rgba(16,26,46,.08);
  --sh-tab:0 -6px 20px rgba(16,26,46,.08);
  --t:200ms ease-out;
  --gap-section:92px;
  --header-h:72px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",Inter,system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:var(--brand);text-decoration:none;transition:color var(--t),border-color var(--t),background-color var(--t);}
a:hover{color:var(--brand-dark);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;line-height:1.28;color:var(--ink);}
p{margin:0 0 1.15em;}
p:last-child{margin-bottom:0;}
button,input{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:none;background:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(15,58,135,0);
  color:#fff;
  transition:background-color var(--t),box-shadow var(--t),color var(--t);
}
.site-header.is-solid{
  background:rgba(255,255,255,.97);
  color:var(--ink);
  box-shadow:var(--sh-header);
  backdrop-filter:saturate(150%) blur(6px);
}
.header-inner{
  height:var(--header-h);
  display:flex;
  align-items:center;
  gap:32px;
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-weight:700;
  font-size:18px;
  letter-spacing:-.2px;
  color:inherit;
  white-space:nowrap;
}
.logo:hover{color:inherit;}
.logo__mark{
  position:relative;
  width:28px;
  height:28px;
  border-radius:9px;
  background:var(--brand);
  flex:0 0 auto;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.18);
}
.logo__mark::before{
  content:"";
  position:absolute;
  left:10px;
  top:8px;
  width:0;
  height:0;
  border-left:9px solid #fff;
  border-top:6px solid transparent;
  border-bottom:6px solid transparent;
}
.logo__mark::after{
  content:"";
  position:absolute;
  right:3px;
  bottom:3px;
  width:7px;
  height:7px;
  border-radius:2px;
  background:var(--orange);
}
.logo__text{font-weight:700;}
.nav{
  display:flex;
  align-items:center;
  gap:32px;
  margin-left:12px;
  flex:1 1 auto;
}
.nav a{
  position:relative;
  font-size:15px;
  color:inherit;
  opacity:.86;
  padding:6px 0;
  white-space:nowrap;
}
.nav a::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:3px;
  border-radius:2px;
  background:var(--brand);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform var(--t);
}
.nav a:hover{opacity:1;color:var(--brand);}
.nav a:hover::after{transform:scaleX(1);}
.nav a.active{opacity:1;color:var(--brand);font-weight:600;}
.nav a.active::after{transform:scaleX(1);}
.site-header.is-solid .nav a{color:var(--muted);}
.site-header.is-solid .nav a:hover{color:var(--brand);}
.site-header.is-solid .nav a.active{color:var(--brand);}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.icon-btn{
  width:42px;
  height:42px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:var(--r-btn);
  border:1px solid rgba(255,255,255,.45);
  color:inherit;
  transition:background-color var(--t),border-color var(--t),color var(--t);
}
.icon-btn:hover{background:rgba(255,255,255,.16);border-color:rgba(255,255,255,.75);color:#fff;}
.site-header.is-solid .icon-btn{border-color:var(--line);color:var(--muted);}
.site-header.is-solid .icon-btn:hover{background:var(--brand-soft);border-color:var(--brand-line);color:var(--brand);}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:0 22px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  transition:background-color var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
}
.btn--sm{min-height:40px;padding:0 16px;font-size:14px;}
.btn--primary{background:var(--brand);color:#fff;}
.btn--primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);}
.btn--outline{border-color:var(--brand);border-style:solid;border-width:1.5px;color:var(--brand);background:transparent;}
.btn--outline:hover{background:var(--brand-soft);color:var(--brand-dark);}
.btn--ghost-light{border-color:rgba(255,255,255,.7);color:#fff;background:transparent;}
.btn--ghost-light:hover{background:rgba(255,255,255,.16);color:#fff;}
.btn--light{background:#fff;color:var(--brand-dark);}
.btn--light:hover{background:#EAF1FF;color:var(--brand-dark);transform:translateY(-1px);}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;}
.menu-toggle{display:none;width:42px;height:42px;border-radius:var(--r-btn);border:1px solid rgba(255,255,255,.45);align-items:center;justify-content:center;color:inherit;}
.site-header.is-solid .menu-toggle{border-color:var(--line);color:var(--muted);}

.search-panel{
  display:none;
  background:#fff;
  border-top:1px solid var(--line);
  box-shadow:var(--sh-header);
  padding:16px 0;
}
.site-header.is-search .search-panel{display:block;}
.search-panel form{display:flex;gap:12px;}
.search-panel input{
  flex:1 1 auto;
  height:48px;
  padding:0 16px;
  border-radius:var(--r-btn);
  border:1px solid var(--line);
  background:#fff;
  color:var(--ink);
  transition:border-color var(--t),box-shadow var(--t);
}
.search-panel input::placeholder{color:var(--weak);}
.search-panel input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(27,88,199,.12);}

.drawer{
  display:none;
  position:fixed;
  top:var(--header-h);
  left:0;
  right:0;
  z-index:70;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:var(--sh-header);
  padding:10px 0 16px;
}
.drawer.is-open{display:block;}
.drawer a{
  display:block;
  padding:14px 0;
  font-size:16px;
  color:var(--ink);
  border-bottom:1px solid var(--line);
}
.drawer a:last-child{border-bottom:none;}
.drawer a.active{color:var(--brand);font-weight:600;}

/* ---------- Page hero ---------- */
.page-hero{
  position:relative;
  margin-top:calc(var(--header-h) * -1);
  padding-top:var(--header-h);
  min-height:320px;
  display:flex;
  align-items:center;
  background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;
  background-position:center 30%;
  isolation:isolate;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(100deg,rgba(15,58,135,.86) 0%,rgba(15,58,135,.7) 58%,rgba(27,88,199,.55) 100%);
  z-index:-1;
}
.page-hero__inner{
  display:flex;
  align-items:flex-end;
  gap:40px;
  justify-content:space-between;
  padding:44px 0 40px;
  width:100%;
}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:rgba(255,255,255,.82);
  margin-bottom:14px;
}
.breadcrumb a{color:rgba(255,255,255,.82);}
.breadcrumb a:hover{color:#fff;text-decoration:underline;}
.breadcrumb li{display:flex;align-items:center;gap:8px;}
.breadcrumb li:not(:last-child)::after{content:"›";color:rgba(255,255,255,.55);}
.breadcrumb li[aria-current]{color:#fff;font-weight:600;}
.page-hero h1{
  font-size:40px;
  font-weight:700;
  letter-spacing:-.5px;
  color:#fff;
  margin-bottom:12px;
}
.page-hero__desc{
  font-size:15px;
  line-height:1.75;
  color:rgba(255,255,255,.85);
  max-width:560px;
  margin:0;
}
.hero-stats{display:flex;gap:36px;flex:0 0 auto;padding-bottom:6px;}
.hero-stat{text-align:left;}
.hero-stat strong{
  display:block;
  font-size:26px;
  font-weight:700;
  color:#fff;
  letter-spacing:-.5px;
  line-height:1.2;
}
.hero-stat span{font-size:12px;color:rgba(255,255,255,.78);}

/* ---------- Sections ---------- */
.section{padding-top:var(--gap-section);}
.section:last-of-type{padding-bottom:var(--gap-section);}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:32px;
}
.section-head h2{
  font-size:32px;
  font-weight:700;
  letter-spacing:-.5px;
  padding-bottom:8px;
  position:relative;
}
.section-head h2::after{
  content:"";
  position:absolute;
  left:0;
  bottom:0;
  width:44px;
  height:3px;
  border-radius:2px;
  background:var(--brand);
}
.section-head p{font-size:15px;color:var(--muted);margin:10px 0 0;}
.link-more{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:15px;
  font-weight:600;
  color:var(--brand);
  white-space:nowrap;
}
.link-more svg{transition:transform var(--t);}
.link-more:hover svg{transform:translateX(3px);}

/* ---------- Chips ---------- */
.chips{
  display:flex;
  gap:10px;
  overflow-x:auto;
  padding:4px 2px 10px;
  margin-bottom:26px;
  scrollbar-width:none;
  -webkit-overflow-scrolling:touch;
}
.chips::-webkit-scrollbar{display:none;}
.chip{
  flex:0 0 auto;
  height:36px;
  padding:0 18px;
  border-radius:var(--r-badge);
  border:1px solid var(--line);
  background:#fff;
  color:var(--muted);
  font-size:14px;
  transition:background-color var(--t),color var(--t),border-color var(--t);
}
.chip:hover{border-color:var(--brand-line);color:var(--brand);}
.chip.is-active{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600;}

/* ---------- Cards ---------- */
.mosaic{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.card{
  position:relative;
  display:flex;
  flex-direction:column;
  background:var(--surface);
  border-radius:var(--r-card);
  box-shadow:var(--sh-card);
  overflow:hidden;
  border:1px solid transparent;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.card:hover,.card:focus-within{
  transform:translateY(-2px);
  box-shadow:var(--sh-hover);
  border-color:var(--brand-line);
}
.card__media{
  position:relative;
  overflow:hidden;
  aspect-ratio:3/4;
  background:linear-gradient(135deg,rgba(27,88,199,.08),rgba(23,195,178,.08));
  border-radius:var(--r-card) var(--r-card) 0 0;
}
.card__media img{
  width:100%;
  height:100%;
  object-fit:cover;
  border-radius:0;
  transition:transform 240ms ease-out;
}
.card:hover .card__media img{transform:scale(1.04);}
.card__body{padding:16px 18px 20px;display:flex;flex-direction:column;gap:8px;flex:1 1 auto;}
.card__body h3{font-size:18px;font-weight:600;letter-spacing:-.2px;}
.card__body p{font-size:14px;color:var(--muted);line-height:1.7;margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card__meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--weak);margin-top:auto;padding-top:6px;}
.badge{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  border-radius:var(--r-badge);
  font-size:13px;
  font-weight:600;
  background:rgba(27,88,199,.1);
  color:var(--brand);
  white-space:nowrap;
}
.badge--status{background:var(--orange);color:#fff;}
.badge--soft{background:var(--bg);color:var(--muted);font-weight:500;}
.card__tags{position:absolute;left:12px;top:12px;display:flex;gap:8px;}
.card__count{
  position:absolute;
  right:12px;
  bottom:12px;
  height:24px;
  padding:0 10px;
  display:inline-flex;
  align-items:center;
  border-radius:var(--r-badge);
  background:rgba(16,26,46,.68);
  color:#fff;
  font-size:12px;
  letter-spacing:.2px;
}
.card--feature{grid-column:span 2;}
.card--wide{grid-column:span 2;}
.card--feature .card__media,
.card--wide .card__media{aspect-ratio:16/9;}
.card--feature .card__body h3,
.card--wide .card__body h3{font-size:22px;}
.card--feature .card__overlay,
.card--wide .card__overlay{
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  padding:26px 24px 22px;
  background:linear-gradient(to top,rgba(15,58,135,.9) 8%,rgba(15,58,135,.12) 72%,rgba(15,58,135,0));
}
.card--feature .card__overlay h3,
.card--wide .card__overlay h3{color:#fff;font-size:22px;line-height:1.35;}
.card--feature .card__overlay p,
.card--wide .card__overlay p{color:rgba(255,255,255,.86);font-size:14px;margin:8px 0 0;
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;}
.card--feature .card__tags .badge,
.card--wide .card__tags .badge{background:rgba(255,255,255,.9);color:var(--brand-dark);}
.card--feature .card__body,
.card--wide .card__body{padding:16px 24px 20px;}

/* ---------- Intro panel ---------- */
.panel{
  background:var(--surface);
  border-radius:var(--r-block);
  box-shadow:var(--sh-card);
  padding:44px;
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:48px;
  align-items:start;
}
.panel h2{font-size:30px;font-weight:700;letter-spacing:-.5px;margin-bottom:20px;}
.panel p{font-size:15px;color:var(--muted);line-height:1.85;}
.check-list{display:flex;flex-direction:column;gap:14px;margin-top:4px;}
.check-list li{
  position:relative;
  padding-left:22px;
  font-size:15px;
  color:var(--ink);
  line-height:1.7;
}
.check-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:10px;
  width:8px;
  height:8px;
  border-radius:2px;
  background:var(--brand);
}
.check-list li span{display:block;font-size:13px;color:var(--weak);}

/* ---------- CTA ---------- */
.cta{
  position:relative;
  border-radius:var(--r-block);
  overflow:hidden;
  min-height:220px;
  display:flex;
  align-items:center;
  background-image:url("/assets/images/backpic/back-3.png");
  background-size:cover;
  background-position:center;
  isolation:isolate;
}
.cta::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(90deg,rgba(15,58,135,.92) 0%,rgba(27,88,199,.78) 60%,rgba(27,88,199,.62) 100%);
  z-index:-1;
}
.cta__inner{
  padding:44px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
  width:100%;
}
.cta h2{color:#fff;font-size:28px;font-weight:700;letter-spacing:-.4px;margin-bottom:10px;}
.cta p{color:rgba(255,255,255,.86);font-size:15px;margin:0;max-width:560px;}
.cta__actions{display:flex;gap:14px;flex:0 0 auto;}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--brand-dark);
  color:rgba(255,255,255,.82);
  padding:64px 0 28px;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.3fr;
  gap:40px;
  padding-bottom:40px;
  border-bottom:1px solid rgba(255,255,255,.16);
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:18px;
  font-weight:700;
  color:#fff;
  margin-bottom:14px;
}
.site-footer p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.7);margin:0;}
.site-footer h4{
  font-size:15px;
  font-weight:600;
  color:#fff;
  margin-bottom:16px;
}
.site-footer ul{display:flex;flex-direction:column;gap:10px;}
.site-footer ul a{font-size:14px;color:rgba(255,255,255,.72);}
.site-footer ul a:hover{color:#fff;text-decoration:underline;}
.footer-note{font-size:14px;color:rgba(255,255,255,.7);line-height:1.8;}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding-top:22px;
  font-size:13px;
  color:rgba(255,255,255,.62);
  flex-wrap:wrap;
}

/* ---------- Mobile tabs ---------- */
.mobile-tabs{
  display:none;
  position:fixed;
  left:0;
  right:0;
  bottom:0;
  z-index:90;
  height:60px;
  padding-bottom:env(safe-area-inset-bottom);
  background:#fff;
  border-top:1px solid var(--line);
  box-shadow:var(--sh-tab);
  grid-template-columns:repeat(4,1fr);
}
.mobile-tabs a{
  position:relative;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:3px;
  min-height:44px;
  font-size:12px;
  color:var(--weak);
}
.mobile-tabs a svg{width:24px;height:24px;stroke-width:1.7;}
.mobile-tabs a.active{color:var(--brand);font-weight:600;}
.mobile-tabs a.active::before{
  content:"";
  position:absolute;
  top:0;
  width:26px;
  height:2px;
  border-radius:2px;
  background:var(--brand);
}

/* ---------- States ---------- */
.skeleton{
  border-radius:var(--r-card);
  background:linear-gradient(100deg,#EDF2FA 22%,#F7FAFF 40%,#EDF2FA 60%);
  background-size:220% 100%;
  animation:shimmer 1.4s linear infinite;
  min-height:220px;
}
@keyframes shimmer{0%{background-position:140% 0;}100%{background-position:-40% 0;}}
.empty-state{
  min-height:220px;
  border-radius:var(--r-card);
  background:#F9FBFE;
  border:1px dashed var(--line);
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:12px;
  text-align:center;
  padding:32px;
}
.empty-state svg{width:64px;height:64px;stroke:var(--weak);stroke-width:1.4;}
.empty-state p{font-size:14px;color:var(--muted);margin:0;}
.img-fallback{
  display:flex;
  align-items:center;
  justify-content:center;
  width:100%;
  height:100%;
  background:var(--brand-soft);
  color:var(--brand);
  font-size:13px;
}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important;scroll-behavior:auto !important;}
}

/* ---------- Responsive ---------- */
@media (max-width:1439px){
  .container{max-width:1160px;}
}
@media (max-width:1199px){
  :root{--gap-section:72px;}
  .container{padding:0 24px;}
  .mosaic{grid-template-columns:repeat(2,1fr);}
  .card--feature,.card--wide{grid-column:span 2;}
  .panel{grid-template-columns:1fr;gap:32px;padding:36px;}
  .section-head h2{font-size:28px;}
  .page-hero h1{font-size:36px;}
  .nav{gap:22px;}
  .nav a{font-size:14px;}
  .hero-stats{gap:26px;}
}
@media (max-width:991px){
  .nav{display:none;}
  .menu-toggle{display:inline-flex;}
  .header-actions .btn--primary{display:none;}
  .page-hero{min-height:280px;}
  .page-hero__inner{flex-direction:column;align-items:flex-start;gap:20px;padding:36px 0 32px;}
  .hero-stats{padding-bottom:0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .panel{padding:30px;}
  .cta__inner{flex-direction:column;align-items:flex-start;padding:36px;}
}
@media (max-width:767px){
  :root{--gap-section:52px;--header-h:64px;}
  body{font-size:15px;padding-bottom:60px;}
  .container{padding:0 16px;}
  .logo__text{font-size:16px;}
  .mobile-tabs{display:grid;}
  .page-hero h1{font-size:28px;letter-spacing:-.3px;}
  .page-hero__desc{font-size:14px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:22px;}
  .section-head h2{font-size:22px;}
  .mosaic{grid-template-columns:1fr;gap:18px;}
  .card--feature,.card--wide{grid-column:span 1;}
  .card--feature .card__body h3,
  .card--wide .card__body h3{font-size:19px;}
  .card--feature .card__overlay h3,
  .card--wide .card__overlay h3{font-size:19px;}
  .panel{padding:24px;border-radius:20px;}
  .panel h2{font-size:22px;}
  .cta__inner{padding:28px 24px;}
  .cta h2{font-size:22px;}
  .cta__actions{width:100%;flex-direction:column;}
  .cta__actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .hero-stats{gap:24px;}
  .hero-stat strong{font-size:22px;}
  .search-panel form{flex-wrap:wrap;}
  .search-panel input{flex:1 1 100%;}
}
@media (max-width:479px){
  .container{padding:0 16px;}
  .btn{min-width:140px;}
  .card__body h3{font-size:17px;}
}

/* roulang page: category2 */
:root{
  --brand:#1B58C7;
  --brand-deep:#0F3A87;
  --cyan:#17C3B2;
  --orange:#FF6A3D;
  --bg:#F4F7FC;
  --surface:#FFFFFF;
  --line:#E3EAF5;
  --ink:#101A2E;
  --muted:#5A6B87;
  --faint:#8A99B0;
  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:10px;
  --radius-pill:999px;
  --radius-block:24px;
  --shadow:0 6px 20px rgba(16,26,46,.06);
  --shadow-hover:0 14px 32px rgba(27,88,199,.14);
  --ease:200ms ease-out;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--orange);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.2px;color:var(--ink);}
p{margin:0 0 1.15em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.96);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--ease),background var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 24px rgba(16,26,46,.09);}
.header-inner{height:72px;display:flex;align-items:center;gap:24px;}
.logo{display:inline-flex;align-items:center;gap:10px;flex:none;}
.logo__mark{
  position:relative;width:32px;height:32px;border-radius:10px;flex:none;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  box-shadow:0 4px 12px rgba(27,88,199,.28);
}
.logo__mark::before{
  content:"";position:absolute;left:11px;top:9px;width:0;height:0;
  border-left:10px solid #fff;border-top:7px solid transparent;border-bottom:7px solid transparent;
}
.logo__mark::after{
  content:"";position:absolute;right:6px;bottom:6px;width:7px;height:7px;border-radius:2px;background:var(--orange);
}
.logo__text{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:-.2px;}
.nav{display:flex;align-items:center;gap:32px;flex:1;justify-content:center;}
.nav a{
  position:relative;font-size:15px;color:var(--muted);padding:6px 0;white-space:nowrap;
}
.nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:-8px;height:3px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform var(--ease);
}
.nav a:hover{color:var(--brand);}
.nav a:hover::after,.nav a.active::after{transform:scaleX(1);}
.nav a.active{color:var(--brand);font-weight:600;}
.header-actions{display:flex;align-items:center;gap:12px;flex:none;}
.icon-btn{
  width:42px;height:42px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:var(--radius-btn);background:#fff;color:var(--muted);
  cursor:pointer;transition:all var(--ease);
}
.icon-btn:hover{border-color:rgba(27,88,199,.4);color:var(--brand);background:rgba(27,88,199,.06);}
.search-panel{
  position:absolute;left:0;right:0;top:100%;display:none;
  background:#fff;border-bottom:1px solid var(--line);box-shadow:0 16px 32px rgba(16,26,46,.08);
  padding:18px 0;
}
.search-panel.is-open{display:block;}
.search-panel form{display:flex;gap:12px;}
.search-panel input{
  flex:1;height:48px;border:1px solid var(--line);border-radius:var(--radius-btn);
  padding:0 16px;font-size:15px;color:var(--ink);background:#fff;transition:all var(--ease);
}
.search-panel input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(27,88,199,.12);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--radius-btn);border:1.5px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;text-decoration:none;
  transition:all var(--ease);
}
.btn--sm{height:40px;padding:0 16px;font-size:14px;}
.btn--primary{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(27,88,199,.22);}
.btn--primary:hover{background:#164BB0;color:#fff;transform:translateY(-1px);}
.btn--primary:active{transform:translateY(0);}
.btn--ghost{background:transparent;border-color:var(--brand);color:var(--brand);}
.btn--ghost:hover{background:rgba(27,88,199,.08);color:var(--brand);}
.btn--light{background:#fff;color:var(--brand);}
.btn--light:hover{background:#EDF3FE;color:var(--brand-deep);}
.btn:disabled{opacity:.4;cursor:not-allowed;transform:none;}

/* ---------- 面包屑 ---------- */
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--faint);flex-wrap:wrap;}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--brand);}
.crumb span.sep{color:#C3CFE2;}
.crumb .current{color:var(--brand);font-weight:600;}

/* ---------- 页头标题带 ---------- */
.page-head{position:relative;background:var(--bg);border-bottom:1px solid var(--line);overflow:hidden;}
.page-head__deco{
  position:absolute;right:0;top:0;width:46%;height:100%;
  background:url("/assets/images/coverpic/cover-5.png") center/cover no-repeat;
  opacity:.14;
  -webkit-mask-image:linear-gradient(to left,rgba(0,0,0,.95),transparent);
  mask-image:linear-gradient(to left,rgba(0,0,0,.95),transparent);
  pointer-events:none;
}
.page-head__inner{position:relative;z-index:1;padding:28px 0 34px;min-height:200px;display:flex;flex-direction:column;justify-content:center;gap:14px;}
.page-head h1{font-size:34px;line-height:1.25;letter-spacing:-.5px;}
.page-head h1 em{font-style:normal;color:var(--brand);}
.page-head__desc{font-size:15px;color:var(--muted);max-width:720px;margin:0;}

/* ---------- 板块 ---------- */
.section{padding:56px 0;}
.section--tight{padding:40px 0 0;}
.section-head{margin-bottom:28px;}
.section-head h2{font-size:30px;line-height:1.3;padding-bottom:8px;}
.section-head p{font-size:15px;color:var(--muted);margin:6px 0 0;}

/* ---------- 主体双栏 ---------- */
.layout{display:grid;grid-template-columns:260px 1fr;gap:48px;align-items:start;}

/* 侧栏 */
.sidebar{
  position:sticky;top:96px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:20px 18px;box-shadow:var(--shadow);
}
.side-title{font-size:15px;font-weight:600;color:var(--brand);letter-spacing:.2px;margin-bottom:12px;}
.side-nav{list-style:none;}
.side-nav li+li{margin-top:2px;}
.side-nav a{
  display:block;padding:9px 12px;font-size:14px;color:var(--muted);border-radius:8px;
  border-left:3px solid transparent;transition:all var(--ease);line-height:1.5;
}
.side-nav a:hover{color:var(--brand);background:#F7FAFF;}
.side-nav a.is-current{
  color:var(--brand);font-weight:600;background:rgba(27,88,199,.07);border-left-color:var(--brand);
}
.side-cta{margin-top:18px;padding-top:16px;border-top:1px solid var(--line);}
.side-cta p{font-size:13px;color:var(--faint);margin:0 0 10px;}
.side-cta .btn{width:100%;}

/* 内容头 */
.content-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:18px;flex-wrap:wrap;}
.content-head h2{font-size:24px;}
.content-head .count{font-size:13px;color:var(--faint);}

/* 编号列表 */
.num-list{list-style:none;border-top:1px solid var(--line);}
.num-row{
  position:relative;display:grid;grid-template-columns:52px 1fr auto;gap:16px;align-items:center;
  min-height:88px;padding:16px 18px 16px 4px;border-bottom:1px solid var(--line);
  transition:background var(--ease);
}
.num-row::before{
  content:"";position:absolute;left:-14px;top:14px;bottom:14px;width:3px;border-radius:2px;
  background:var(--brand);transform:scaleY(0);transform-origin:center;transition:transform var(--ease);
}
.num-row:hover{background:#F7FAFF;}
.num-row:hover::before{transform:scaleY(1);}
.num-row__idx{
  font-size:24px;font-weight:700;color:var(--brand);line-height:1;letter-spacing:0;
  -webkit-text-stroke:.4px var(--brand);
}
.num-row__title{font-size:17px;font-weight:600;line-height:1.5;margin:0 0 4px;}
.num-row__title a{color:var(--ink);}
.num-row__title a:hover{color:var(--brand);}
.num-row__desc{font-size:14px;color:var(--muted);margin:0;line-height:1.6;}
.num-row__meta{display:flex;align-items:center;gap:12px;white-space:nowrap;}
.num-row__meta time{font-size:13px;color:var(--faint);font-variant-numeric:tabular-nums;}

/* 徽章 */
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--radius-pill);
  font-size:13px;font-weight:600;background:rgba(27,88,199,.1);color:var(--brand);white-space:nowrap;
}
.badge--hot{background:var(--orange);color:#fff;}
.badge--soft{background:var(--bg);color:var(--muted);font-weight:500;}

/* 专题推荐横卡 */
.topic-card{
  display:flex;align-items:center;gap:16px;margin:16px 0;padding:14px 18px;
  background:#F9FBFE;border:1px solid var(--line);border-radius:var(--radius-card);
  transition:all var(--ease);
}
.topic-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);}
.topic-card img{width:120px;height:76px;object-fit:cover;border-radius:var(--radius-img);flex:none;}
.topic-card__body{flex:1;min-width:0;}
.topic-card__tag{font-size:12px;color:var(--cyan);font-weight:700;letter-spacing:.5px;}
.topic-card__title{font-size:16px;font-weight:600;margin:4px 0 0;line-height:1.5;}
.topic-card__title a{color:var(--ink);}
.topic-card__title a:hover{color:var(--brand);}
.topic-card .arrow{flex:none;color:var(--brand);font-size:20px;transition:transform var(--ease);}
.topic-card:hover .arrow{transform:translateX(4px);}

/* 分页 */
.pager{display:flex;justify-content:center;align-items:center;gap:8px;margin-top:32px;flex-wrap:wrap;}
.pager a,.pager span{
  display:inline-flex;align-items:center;justify-content:center;min-width:42px;height:42px;padding:0 14px;
  border:1px solid var(--line);border-radius:var(--radius-btn);background:#fff;
  font-size:14px;color:var(--muted);transition:all var(--ease);
}
.pager a:hover{border-color:var(--brand);color:var(--brand);}
.pager .is-active{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600;}
.pager .is-disabled{opacity:.45;cursor:not-allowed;}

/* FAQ */
.faq-wrap{max-width:920px;}
.faq-item{background:var(--surface);border-radius:var(--radius-card);box-shadow:var(--shadow);margin-bottom:12px;overflow:hidden;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;background:none;border:0;cursor:pointer;text-align:left;
  font-size:17px;font-weight:600;color:var(--ink);line-height:1.5;position:relative;
}
.faq-q::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;border-radius:0 2px 2px 0;background:var(--brand);
}
.faq-q .chev{
  flex:none;width:20px;height:20px;position:relative;transition:transform var(--ease);
}
.faq-q .chev::before,.faq-q .chev::after{
  content:"";position:absolute;top:9px;left:3px;width:14px;height:2px;border-radius:2px;background:var(--brand);
}
.faq-q .chev::before{transform:rotate(45deg);left:1px;}
.faq-q .chev::after{transform:rotate(-45deg);left:8px;}
.faq-item.is-open .chev{transform:rotate(180deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height 240ms ease-out;}
.faq-a p{padding:0 20px 20px;font-size:15px;line-height:1.85;color:var(--muted);}

/* CTA 条 */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-block);
  background:var(--brand-deep);color:#fff;padding:44px 40px;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.08);
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:36px 36px;
}
.cta-inner{position:relative;z-index:1;display:grid;grid-template-columns:1fr auto;gap:32px;align-items:center;}
.cta-band h2{color:#fff;font-size:26px;line-height:1.35;padding-bottom:6px;}
.cta-band p{color:rgba(255,255,255,.82);font-size:15px;margin:6px 0 0;}
.cta-form{display:flex;gap:10px;align-items:center;}
.cta-form input{
  width:280px;height:48px;border-radius:var(--radius-btn);border:1px solid rgba(255,255,255,.28);
  background:rgba(255,255,255,.12);color:#fff;padding:0 16px;font-size:15px;transition:all var(--ease);
}
.cta-form input::placeholder{color:rgba(255,255,255,.6);}
.cta-form input:focus{outline:none;border-color:#fff;background:rgba(255,255,255,.2);box-shadow:0 0 0 4px rgba(255,255,255,.14);}
.cta-form .btn{background:var(--orange);color:#fff;}
.cta-form .btn:hover{background:#F0562A;transform:translateY(-1px);}

/* ---------- 页脚 ---------- */
.site-footer{background:#0B2A61;color:rgba(255,255,255,.78);padding:56px 0 0;margin-top:24px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:16px;font-weight:700;margin-bottom:14px;}
.site-footer h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600;}
.site-footer p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.7);}
.site-footer ul{list-style:none;}
.site-footer li+li{margin-top:10px;}
.site-footer a{font-size:14px;color:rgba(255,255,255,.72);}
.site-footer a:hover{color:#fff;}
.footer-note{font-size:13px!important;color:rgba(255,255,255,.6)!important;}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.14);padding:20px 0 28px;
  font-size:13px;color:rgba(255,255,255,.6);
}

/* ---------- 移动端底部 Tab ---------- */
.tabbar{display:none;}
.tabbar__link{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  flex:1;min-height:44px;font-size:12px;color:var(--faint);position:relative;text-decoration:none;
  background:none;border:0;cursor:pointer;padding:0;
}
.tabbar__link svg{width:24px;height:24px;stroke:currentColor;fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round;}
.tabbar__link::before{
  content:"";position:absolute;top:0;left:50%;width:26px;height:2px;border-radius:2px;
  background:var(--brand);transform:translateX(-50%) scaleX(0);transition:transform var(--ease);
}
.tabbar__link.is-active{color:var(--brand);font-weight:600;}
.tabbar__link.is-active::before{transform:translateX(-50%) scaleX(1);}
.tabbar__link.is-active svg{fill:rgba(27,88,199,.12);}

/* ---------- 响应式 ---------- */
@media (max-width:1439px){
  .container{max-width:1160px;}
}
@media (max-width:1199px){
  .layout{grid-template-columns:230px 1fr;gap:36px;}
  .section{padding:48px 0;}
  .page-head h1{font-size:31px;}
  .section-head h2{font-size:27px;}
}
@media (max-width:991px){
  .container{padding:0 24px;}
  .nav{display:none;}
  .layout{grid-template-columns:1fr;gap:28px;}
  .sidebar{position:static;}
  .side-nav{display:flex;gap:8px;overflow-x:auto;padding-bottom:4px;-ms-overflow-style:none;scrollbar-width:none;}
  .side-nav::-webkit-scrollbar{display:none;}
  .side-nav li+li{margin-top:0;}
  .side-nav li{flex:0 0 auto;}
  .side-nav a{
    border-left:0;border:1px solid var(--line);border-radius:var(--radius-pill);
    background:#fff;padding:8px 14px;white-space:nowrap;font-size:13px;
  }
  .side-nav a.is-current{background:var(--brand);border-color:var(--brand);color:#fff;}
  .side-cta{margin-top:16px;padding-top:14px;}
  .side-cta .btn{width:auto;padding:0 18px;}
  .cta-inner{grid-template-columns:1fr;gap:22px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  body{padding-bottom:60px;}
  .header-inner{height:64px;}
  .logo__text{font-size:16px;}
  .header-actions .btn{display:none;}
  .page-head__inner{padding:20px 0 26px;min-height:170px;}
  .page-head h1{font-size:24px;}
  .page-head__deco{width:70%;opacity:.1;}
  .section{padding:40px 0;}
  .section-head h2,.content-head h2{font-size:22px;}
  .num-row{grid-template-columns:40px 1fr;gap:12px;padding:14px 4px;min-height:auto;}
  .num-row__idx{font-size:19px;}
  .num-row__title{font-size:16px;}
  .num-row__desc{font-size:13px;}
  .num-row__meta{grid-column:2;justify-content:flex-start;margin-top:6px;}
  .num-row::before{left:-8px;}
  .topic-card{flex-direction:column;align-items:flex-start;padding:14px;}
  .topic-card img{width:100%;height:150px;}
  .topic-card .arrow{display:none;}
  .cta-band{padding:30px 22px;}
  .cta-band h2{font-size:21px;}
  .cta-form{flex-direction:column;align-items:stretch;width:100%;}
  .cta-form input{width:100%;}
  .cta-form .btn{width:100%;}
  .btn{min-height:44px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:30px;}
  .pager span,.pager a{min-width:40px;height:40px;padding:0 12px;}
  .tabbar{
    position:fixed;left:0;right:0;bottom:0;z-index:90;display:flex;
    height:60px;padding-bottom:env(safe-area-inset-bottom);
    background:#fff;border-top:1px solid var(--line);box-shadow:0 -6px 20px rgba(16,26,46,.06);
  }
}
@media (max-width:479px){
  .page-head h1{font-size:22px;}
  .section-head h2,.content-head h2{font-size:20px;}
  .faq-q{font-size:15.5px;padding:16px;}
  .faq-a p{padding:0 16px 18px;font-size:14.5px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;}
}